The Xiaomi Mi 6, released in 2017, is still popular with users thanks to its powerful hardware and support for modern wireless technologies. However, connecting wireless headphones (especially Redmi AirDots, Xiaomi TWS or other brands) sometimes causes difficulties due to the features of MIUI firmware and the outdated version of Bluetooth 5.0. In this article, we will analyze all the pairing methods, typical errors and hidden settings that will help stabilize the connection.
It is important to consider that the Mi 6 runs on Android 9 Pie (the latest official firmware), and some features of the new headphones (for example, the new ones, LC3-codecs LE Audios may not be supported. But even with these limitations, the right setup will allow you to achieve sound quality without interruptions. If you're faced with problems like "earphones are plugged in, but no sound" or "connection is constantly breaking" - there are solutions in this article.
1. Preparation of headphones and phone before connection
Make sure both devices are ready to communicate before pairing, and problems often arise from a discharged headphone battery, power saving on your smartphone, or conflict with other Bluetooth devices.
For the Xiaomi Mi 6, it is critical to turn off battery optimization for audio-related applications (such as Mi Bluetooth or Spotify). Also check if the Developer → Bluetooth Debugging mode is activated - it can block some headphone models from connecting.
- 🔋 Charge your headphones to 100% (the indicator should be green or blue).
- 📱 Reboot Xiaomi Mi 6 – it will reset the temporary errors of the Bluetooth module.
- 🔄 Make sure the headphones aren’t connected to another device (like a laptop or tablet).
- 🚫 Turn it off. VPN and energy saving modes in Settings → Battery.
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If the headphones have previously connected to another phone, reset them, usually holding the power button on the case for 10-15 seconds until the red/white indicator flashes.
2. Standard Bluetooth connection: step-by-step instructions
The basic way to pair is through the Bluetooth menu in the smartphone settings, a method that is suitable for most headphone models, including the Redmi AirDots, Sony WH-1000XM4 or JBL Free.
The instructions are valid for MIUI 12.5 (last stable version for Mi 6):
- Open Settings → Bluetooth and activate the slider.
- Put the headphones in pairing mode: For Xiaomi AirDots: hold the touchpad on both headphones for 3 seconds. For other models: usually you need to press the power button until the indicator flashes.
«Redmi AirDots_R»
Confirm the pairing if there is a connection request.
After a successful connection, the Bluetooth menu will be “Connected” status. If the headphones support AAC or aptX, the smartphone will automatically select the optimal audio codec.
Headphones are displayed in the list Bluetooth|Status "Connected" active |Sound is played without delay |Indicator on headphones is on even light-->
3. Problem Solving: Headphones don't plug in or turn off
If the Xiaomi Mi 6 doesn’t see the headphones or the connection breaks after a few seconds, the reasons may be both software and hardware.
| Problem. | Possible cause | Decision |
|---|---|---|
| Headphones don’t appear in the Bluetooth list | Conflict with other devices or outdated Bluetooth firmware | Remove all saved devices in Settings → Bluetooth and restart your phone |
| The connection is broken when playing music | Power saving mode activated for Bluetooth | Turn off battery optimization for sound applications in Settings → Battery → Optimization |
| The sound is interrupted or delayed. | Use a non-optimal audio codec (e.g. SBC instead of AAC) | Install the Developer Options app and manually select the aptX or AAC codec |
| Only one earpiece works. | Failure of synchronization between right and left headphones | Place both headphones in a case, wait 10 seconds and re-extract them |
A critical feature of the Mi 6: due to the outdated Qualcomm Snapdragon 835 chipset, the phone can conflict with headphones based on Realtek chips (for example, some models of QCY or Baseus), in this case, only the firmware of the custom core with updated Bluetooth drivers will help.
Redmi AirDots / AirDots Pro|Other Xiaomi headphones (TWS, FlipBuds)|Sony / JBL / Samsung|Other brands|I don't know.-->
4. Alternative ways of connecting: applications and hidden functions
If standard pairing doesn’t work, you can use Xiaomi’s proprietary utilities or third-party tools. For example, the Mi Bluetooth app (available on Google Play) offers advanced settings for AirDots headphones, including firmware updates and audio profile selection.
For advanced users, a way to connect via ADB-This is true if the phone can't see the headphones because of the limitations. MIUI:
adb shell settings put global bluetooth_on 1
adb shell am start -a android.bluetooth.adapter.action.REQUEST_DISCOVERABLEThese commands force Bluetooth activation and put the phone into detection mode, and only use them if other methods fail — misuse of ADB can disrupt the system.
How to turn on the developer mode on Mi 6?
5. Sound optimization after connection
Even after successful pairing, the sound quality can leave much to be desired. On the Xiaomi Mi 6, there are several ways to improve the audio:
- 🎵 Include sound effects in Settings → Sound. → Sound effects (Music or Mode Mode Recommended»).
- 🔊 Turn off "Absolute Volume" in Settings → For developers → Network → Bluetooth Audio – this will allow you to adjust the volume directly from the headphones.
- 📱 Set the uniform EQ through applications such as Poweramp or Viper4Android (Root rights are required).
For headphones with support for aptX HD or LDAC (such as Sony WH-1000XM4), you must manually select the codec in the Bluetooth settings, this can be done through the Developer Options app or Bluetooth Codec Changer (available from the Play Market).
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On the Mi 6, the maximum sound quality is achieved using a codec. AAC (Apple Music) or aptX (for high-bitret audio). SBC It causes significant loss of quality.
6. reset Bluetooth settings: when nothing helps
If the headphones are still not connected or are not working smoothly, the final step is to completely reset the Bluetooth module, which will remove all the stored devices and return the settings to the factory.
Instructions:
- Go to Settings → Applications → Application Management.
- Find “Bluetooth” in the list of system applications.
- Slip "Storage" → "Clear the data" and confirm the action.
- Reboot the phone and repeat pairing the headphones.
⚠️ Warning: Once reset, all previously connected devices (columns, fitness bracelets, smartwatches) will be removed. Write down their names in advance so you can quickly reconnect them.
If the reset didn't work, the problem could be hardware, like a Bluetooth module or antenna malfunction, which requires a diagnosis at a service center.
7.compatibility of Xiaomi Mi 6 with popular headphone models
The Xiaomi Mi 6 supports most wireless headphones, but some models may have nuances. Below is a table of compatibility with popular devices:
| Model headphones | Compatibility | Features |
|---|---|---|
| Redmi AirDots (1-3 generation) | ✅ Complete. | Automatic connection via Mi Bluetooth, AAC support |
| Xiaomi FlipBuds Pro | ✅ Partial | ANC works, but there may be a delay in sound in games |
| Sony WH-1000XM4 | ✅ Complete. | Support for LDAC only through third-party applications |
| Apple AirPods (all generations) | ⚠️ Limited. | No support for Apple W1, possible communication breakdowns |
| JBL Free / Live Pro+ | ✅ Complete. | Stable connection, but without aptX Adaptive support |
For active noise cancellation (ANC) headphones on the Mi 6, it may be necessary to turn off energy-saving features in Settings → Battery → Application Optimization, otherwise the ANC microphones will shut down after 5-10 minutes of inactivity.